@textovervideo This one is working for me.
USB-BT400
https://www.asus.com/us/networking-iot-servers/adapters/all-series/usbbt400/
@gm The ASUS USB-BT400 USB 2.0 Bluetooth 4.0 Adapter is plug and play or did you have to install and/or configure for it to work on Linux?
@textovervideo Plug and play on both Debian and Tumbleweed.